Bonn 2020 – wissenschaftliches Programm

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EP: Fachverband Extraterrestrische Physik

EP 13: Exoplanets and Astrobiology

EP 13.9: Vortrag

Freitag, 3. April 2020, 12:15–12:30, H-HS VIII

Planet Earth in spectropolarimetry — •Mihail Manev1, Claudia Emde2, Michael Sterzik3, and Stefano Bagnulo41Meteorological Institute, Ludwig-Maximilians-University, Theresienstr. 37, D-80333 Munich, Germany — 2Meteorological Institute, Ludwig-Maximilians-University, Theresienstr. 37, D-80333 Munich, Germany — 3European Southern Observatory, Karl-Schwarzschild-Str. 2, D-85748 Garching, Germany — 4Armagh Observatory and Planetarium, College Hill, Armagh BT61 9DG, UK

In the next ten years several new powerful telescopes are expected to see first light and bring many exciting discoveries of terrestrial exoplanets. Knowledge of Earth as an exoplanet is vital in order to be able to interpret these future measurements.

We analyzed spectropolarimertic observations of Earthshine, carried out at the VLT (Sterzik et al., Spectral and Temporal Variability of Earth Observed in Polarization, A&A, Vol. 622, A41, 2019), utilizing the state-of-the art Monte Carlo radiative transfer model MYSTIC (Emde et al., Influence of aerosols, clouds, and sunglint on polarization spectra of Earthshine, A&A, Vol. 605, A2, 2017).

The results reveal, which characteristics of Earth can be infered from spectropolarimetry and what signatures are expected from Earth-like exoplanets.

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